No frontend editing

Hello,my multishop installation shows no frontend menu bar at all,I am logged in and have configured everything as described in the video.Just a error block to the right, that no categories and shop name... is configured.Also there is a very strange phenomenon:The whole script is written in the html title tag:"THIS WEBSITE IS POWERED BY TYPO3 MULTISHOP The webshop plugin for Typo3..." etc.I have looked at everything, but have no clue, please help...thanks in advance!

I am logged in, there is NO error block and NO frontend menu bar at all.Source code show me a lot javascript code from multishop.Compare database in install tool shows me a long list of database updates to to related to multishop.Write to database does not change anything.When I use phpmyadmin executing sql statements shown me in install tool there a lot of mySQL messages like: